Robust and fast microwave-driven quantum logic for trapped-ion qubits
Microwave-driven logic is a promising alternative to laser control in scaling trapped-ion based quantum processors. We implement Mølmer-Sørensen two-qubit gates on <sup>43</sup>Ca<sup>+</sup> hyperfine clock qubits in a cryogenic ( ≈25 K) surface trap, driven by near-field m...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Physical Society
2024
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| _version_ | 1824459120835559424 |
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| author | Weber, MA Gely, MF Hanley, RK Harty, TP Leu, AD Löschnauer, CM Nadlinger, DP Lucas, DM |
| author_facet | Weber, MA Gely, MF Hanley, RK Harty, TP Leu, AD Löschnauer, CM Nadlinger, DP Lucas, DM |
| author_sort | Weber, MA |
| collection | OXFORD |
| description | Microwave-driven logic is a promising alternative to laser control in scaling trapped-ion based quantum processors. We implement Mølmer-Sørensen two-qubit gates on <sup>43</sup>Ca<sup>+</sup> hyperfine clock qubits in a cryogenic ( ≈25 K) surface trap, driven by near-field microwaves. We achieve gate durations of 154 µs [with 1.0(2)% error] and 331 µs [0.5(1)% error], which approaches the performance of typical laser-driven gates. In the 331 µs gate, we demonstrate a Walsh-modulated dynamical decoupling scheme which suppresses errors due to fluctuations in the qubit frequency as well as imperfections in the decoupling drive itself.
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| first_indexed | 2025-02-19T04:36:44Z |
| format | Journal article |
| id | oxford-uuid:b1aefe4e-fc13-49dd-8574-ddab3f458527 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2025-02-19T04:36:44Z |
| publishDate | 2024 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:b1aefe4e-fc13-49dd-8574-ddab3f4585272025-01-31T17:13:15ZRobust and fast microwave-driven quantum logic for trapped-ion qubitsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b1aefe4e-fc13-49dd-8574-ddab3f458527EnglishSymplectic ElementsAmerican Physical Society2024Weber, MAGely, MFHanley, RKHarty, TPLeu, ADLöschnauer, CMNadlinger, DPLucas, DMMicrowave-driven logic is a promising alternative to laser control in scaling trapped-ion based quantum processors. We implement Mølmer-Sørensen two-qubit gates on <sup>43</sup>Ca<sup>+</sup> hyperfine clock qubits in a cryogenic ( ≈25 K) surface trap, driven by near-field microwaves. We achieve gate durations of 154 µs [with 1.0(2)% error] and 331 µs [0.5(1)% error], which approaches the performance of typical laser-driven gates. In the 331 µs gate, we demonstrate a Walsh-modulated dynamical decoupling scheme which suppresses errors due to fluctuations in the qubit frequency as well as imperfections in the decoupling drive itself. |
| spellingShingle | Weber, MA Gely, MF Hanley, RK Harty, TP Leu, AD Löschnauer, CM Nadlinger, DP Lucas, DM Robust and fast microwave-driven quantum logic for trapped-ion qubits |
| title | Robust and fast microwave-driven quantum logic for trapped-ion qubits |
| title_full | Robust and fast microwave-driven quantum logic for trapped-ion qubits |
| title_fullStr | Robust and fast microwave-driven quantum logic for trapped-ion qubits |
| title_full_unstemmed | Robust and fast microwave-driven quantum logic for trapped-ion qubits |
| title_short | Robust and fast microwave-driven quantum logic for trapped-ion qubits |
| title_sort | robust and fast microwave driven quantum logic for trapped ion qubits |
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